<template>
  <div class="app-container">
    <!-- 讲师表单 -->
     <el-form label-width="120px">
      <el-form-item label="讲师名称">
        <el-input v-model="teacher.name"/>
      </el-form-item>
      <el-form-item label="讲师排序">
        <el-input-number v-model="teacher.sort" controls-position="right" :min="0"/>
      </el-form-item>
      <el-form-item label="讲师头衔">
        <el-select v-model="teacher.level" clearable placeholder="请选择">
          <el-option :value="1" label="高级讲师"/>
          <el-option :value="2" label="首席讲师"/>
        </el-select>
      </el-form-item>
      <el-form-item label="讲师资历">
        <el-input v-model="teacher.career"/>
      </el-form-item>
      <el-form-item label="讲师简介">
        <el-input v-model="teacher.intro" :rows="10" type="textarea"/>
      </el-form-item>

      <!-- 讲师头像：TODO -->
      <!-- 讲师头像 -->
      <el-form-item label="讲师头像">

          <!-- 头衔缩略图 指定url路径 -->
          <pan-thumb :image="teacher.avatar"/>
          <!-- 文件上传按钮 -->
          <el-button type="primary" icon="el-icon-upload" @click="imagecropperShow=true">更换头像
          </el-button>

          <!--
      v-show：是否显示上传组件
      :key：类似于id，如果一个页面多个图片上传控件，可以做区分
      :url：后台上传的url地址
      @close：关闭上传组件
      @crop-upload-success：上传成功后的回调 
        <input type="file" name="file"/>
      -->
          <image-cropper
                        v-show="imagecropperShow"
                        :width="300"
                        :height="300"
                        :key="imagecropperKey"
                        :url="BASE_API+'oss/client/policy'"
                        field="file"
                        @close="close"
                        @crop-upload-success="cropSuccess"/>
      </el-form-item>

      <el-form-item label="上传文件">
        <multi-upload
          style="float:left;margin-left:10px;"
          :showFile="false"
          :listType="'text'"
          v-model="uploadImages"
        ></multi-upload>
      </el-form-item>

      <el-form-item>
        <el-button :disabled="saveBtnDisabled" type="primary" @click="saveOrUpdate">{{saveOrUpdateField}}</el-button>
      </el-form-item>
    </el-form>

  </div>
</template>
<script>
import teacher from "@/api/edu/teacher"
import ImageCropper from '@/components/ImageCropper'
import PanThumb from '@/components/PanThumb'
import MultiUpload from '@/components/upload/singleUpload';

export default {
    components:{ ImageCropper, PanThumb , MultiUpload },
    data(){
        return{
            //头像的链接，奇怪的是，teacher里的值读取不到
            // avatar:"http://up.enterdesk.com/edpic/de/67/ac/de67acb91e02a3121e3974c0177f8bf2.jpg",
            saveOrUpdateField:null,
            teacher:{
                name: '',
                sort: 0,
                level: 1,
                career: '',
                intro: '',
                avatar: "http://up.enterdesk.com/edpic/de/67/ac/de67acb91e02a3121e3974c0177f8bf2.jpg",
            },
            saveBtnDisabled:false,  // 保存按钮是否禁用

            //上传弹框组件是否显"示
            imagecropperShow:false,
            imagecropperKey:0,//上传组件key值
            BASE_API:process.env.BASE_API, //获取dev.env.js里面地址

            //测试 上传文件
            uploadImages:"",

        }
    },
    watch:{
        $route(to,from){
          this.init();
        }
    },
    methods:{
        //初始化，判断是否有带参数id判断保存/更新
        init(){
            if(this.$route.params&&this.$route.params.id){
                this.saveOrUpdateField = "更新";
                const id = this.$route.params.id;
                this.info(id);
            }else{
                this.saveOrUpdateField = "保存";
                this.teacher = {
                  avatar: "http://up.enterdesk.com/edpic/de/67/ac/de67acb91e02a3121e3974c0177f8bf2.jpg"
                };
            }
        },
        //上传头像关闭或者失败执行
        close(){
          //不显示弹窗（上传文件）
          this.imagecropperShow=false
          //上传组件初始化
          this.imagecropperKey = this.imagecropperKey+1
        },
        //上传文件成功执行
        cropSuccess(data){
          console.log(data);
          //不显示弹窗（上传文件）
          this.imagecropperShow=false
          //上传之后接口返回图片地址
          this.teacher.avatar = data.url
          this.avatar = data.url
          this.imagecropperKey = this.imagecropperKey+1
        },
        saveOrUpdate(){
            if(this.saveOrUpdateField=="更新"){
                //更新操作
                teacher.update(this.teacher).
                then(response=>{
                    this.$message({
                        type:'success',
                        message: '更新成功'
                    })
                    this.$router.push({path:'/edu/teacher/list'})
                })
            }else if(this.saveOrUpdateField == "保存"){
                //保存操作
                teacher.save(this.teacher).
                then(response=>{
                    this.$message({
                        type:'success',
                        message: '添加成功'
                    })
                })
                this.$router.push({path:'/edu/teacher/list'})
            }
        },
        //更新回响数据
        info(id){
            teacher.info(id).
            then(response=>{
                this.teacher = response.data.data;
            })
        }
    },
    created(){
        this.init();
    }
}
</script>


<style scoped>

</style>